noun
- Widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity.
- synonyms: ragwort, tansy ragwort, benweed, Senecio jacobaea
- Any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma.
- synonyms: ambrosia, bitterweed
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ragweed. Retrieved September 21, 2026, from http://smartdefine.org/ragweed/definitions/1325017 |
| Chicago | WordNet. 2010. "ragweed" http://smartdefine.org/ragweed/definitions/1325017 (accessed September 21, 2026). |
| Harvard | WordNet 2010, ragweed, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ragweed/definitions/1325017>. |
| MLA | WordNet. "ragweed" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/ragweed/definitions/1325017> |